Mixing machine



A. LA'CKEY.

I MIXING MACHINE. APPLICATION man AUG. 29. 1921.

1,408,609. r Patented Mar- 7, 1922.

2 SHEETS-SHEET I- I UH I i Q A LACKEY. MIXING MACHINE. APPLICATION HLED AUG. 29. I921, 1,408,609. latented Mar- 7,1922.

2 SlfiEETS-SHEET 2.

ABRAHAM. LAGKEY. OF BTALTO, CALIFORNIA.

MIXING MACHINE.

Application filed August 29, 1921.

To all 0.0 limit it may concern Be it known that I, ABRAHAM Lxcnnx, a citizen of the United States, residing at Rialto, in the county of San Bernardino and State of California, have invented certain new and useful Improvements in Mixing Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to mixing machines and more particularly to machines for mixing finely divided or comminuted material such as fertilizers, washing powders or the like.

One of the principal objects of the invention is to provide a simple, inexpensive and efficient machine of this character which will thoroughly mix the ingredients in fertilizers, washing powders or the like.

A further object of the invention is to provide a machine of this character embodying a screw conveyor so arranged with respect to other parts of the machine that the material will be mixed and remixed until a desired comingling of the elements is attained.

Another object of the invention is the pro vision of novel means for discharging the mixed material from the mixer when the ingredients have been thoroughly comingled.

Further objects of the invention will ap pear as the following specific description read in connection with the H-CCOIUPEUIYiUQ; drawings which form a part of this application and in which:

Figure 1 is a side elevation;

Figure 2 is a vertical sectional View;

Figure 3 is a top plan view;

Figure 4 is a detail elevation with parts broken away, showing the position of the discharge chute used when the elements of the material being mixed are thoroughly comingled.

Figure 5 is a fragmentary plan view of the chute.

Referring more particularly to the drawing, 1 represents a cylindrical casing constructed of any suitable material and of any suitable sizewhich is supported upon a plurality of legs 2, and is provided with a frusto-conical bottom 3. Mounted within the casing 1 is a cylinder 41. which rests upon the bottom 3, as shown in Figure 2, and which terminates short of the top of the Specification of Letters Patent.

Patented Mar. '7, 1922.

Serial No. 496,313.

casing so that material elevated therein will overflow into the casing as will be presently understood. Mounted within the cylinder and having its lower end journaled in a step bearing 5 is a shaft 6 carrying a screw conveyor 7 which fits the cylinder as shown. The upper end of the shaft is journaled in a bearing 8 formed in a cross bar orspider 9 extending across the open upper end of the casing 1.

Mounted in suitable bearings 10 and 11 supported respectively upon the casing and cross bar 9 is a driving shaft 12 having upon its inner end a beveled gear 13 arranged to mesh, with a corresponding gear 1% upon the upper end of the shaft 6. The shaft 19. is provided with a belt pulley 15 which is connected to a source of power not shown, and which is adapted to drive the shaft 12 so as to produce a continuous movement of the screw conveyor 7 in one direction, i. e., a direction to lift the material fed into the cylinder, as will be now described. The lower end of the cylinder 1, immediately adjacent its contact with the bottom 3, is provided with a plurality of openings 16 through which the material contained in the casing 1 passes into the cylinder 1 and is picked up by the screw conveyor 7.

In the operation of the device, the casing 1 is filled or partially filled with the respective ingredients to be mixed and the shaft 12 rotated so as to drive the screw conveyor in such a direction as will elevate the material passing from the casing 1 into the cylinder 4: through the apertures or openings 16. The material entering the openings 16 is picked up by the conveyor and carried to the top of the cylinder l where it overflows into the casing again. This continued operation insures a thorough comingling of the ingredients which go to make up the combination, such as fertilizers, washing powders, or the like.

Surrounding the upper end of the cylinder and frictionally maintained in fixed position thereon is a ring 17 having an upstanding guard 18 of semicircular outline formed integrally therewith. The casing 1 is provided with a door 19 through which a chute or trough 20 is adapted to pass. This chute or trough, as shown, is substantially semicircular in cross section and is provided at its inner end with a notch 21 forming straddling arms or legs 22 arranged to embrace the ring and in Figure 4.

Normally when mixing material in the casing, the chute or trough 20 is removed and the ring 17 with its guard 18 is lowered below the top edge of the cylinder 4 so as to permit the overflow of the material being mixed in all directions from the upper end of the cylinder. When the material has been thoroughly mixed, the ring 17 is slid up on the cylinder 4 until the guard 18 projects a considerable distance above the same and the member 19 opened and the chute or trough 20 inserted so that the arms 22 st addle the ring and guard, as shown. The material then discharged from the cylinder 4 cannot escape to either side of the cylinder, but is directed by the guard 18 into the chute 20 from whence it may be discharged into any suitable re ceptacle, or may be fed into cartons or other containers for shipment.

What I claim is:

1. In a mixing machine, a casing, a cylinder mounted in the casing and arranged to receive material from the casing adjacent its bottom, means in the cylinder for elevating the material received and discharging it at guard 17 and 18, as shown 1 ,eoaeoe the top or the easing into the cylinder, a door in the casing, a chute passing through the door, and a guard slidably mounted upon the cylinder and associated with the chute for directing the material discharged from the cylinder into the chute.

2. In a mixing machine including a casing an upright cylinder mounted in the casing and communicating with the latter at its bottom whereby to receive material from the casing, means operating within the cylinder for elevating the material received and discharging it at the top of the cylinder and a door in the casing; means for conducting material discharged at the top of the cylinder to the outside of the casing comprising a collar slidably adjustably mounted at the upper end of the cylinder and formed with a cut away portion, and a chute insertible through said opening and having a slotted end engageable about said collar with the inner end of the slot disposed against-the collar immediately below the cut away portion of the latter.

In testimony whereof I hereunto allix my signature.

ABRAl'lAM LAOKEY. 

